用于个人热舒适度和节能建筑的多功能Janus涂层元结构
Yiqi Dong1, Lindai Sun1, Yujie Guo1
1College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China.
ACS applied materials & interfaces
|February 24, 2025
概括
这项研究引入了用于被动辐射冷却和太阳能加热的Janus涂层织物 (JCF). JCF面料为建筑物和个人舒适提供了节能的热管理.
科学领域:
- 材料科学 材料科学 材料科学
- 能源工程 能源工程
- 可持续技术 可持续技术
背景情况:
- 全球用于空间冷却和加热的能源消耗量很大.
- 目前的HVAC系统主要专注于室内温度控制.
- 需要节能,适应性强的热管理解决方案.
研究的目的:
- 开发一种用于辐射冷却,太阳能加热和焦力加热的多功能雅努斯涂层织物 (JCF).
- 证明织物利用环境空间和太阳辐射进行热管理的能力.
- 在没有外部能源输入的情况下,评估JCF在各种环境条件下的表现.
主要方法:
- 布料涂上特定材料以控制反射率,发射率和吸收率.
- 在环境条件下测试辐射冷却性能.
- 在直接阳光下评估太阳能供热效率.
- 评估朱尔的加热能力和电反应.
- 构建能源模拟来预测大规模影响.
主要成果:
- 辐射冷却层实现了96%的太阳反射率和96%的红外辐射率,使环境温度降低了3.1°C.
- 太阳能加热模式显示了13.3°C的辐射变暖能力.
- JCF显示了快速的电响应和高效的热转换,用于主动加热.
- 模拟预测,在80%的中国城市中,采用联合发电机制部署将节省超过25MJ/m2的能源.
结论:
- 多功能雅努斯涂层面料为辐射热管理提供了一种实用的方法.
- 在改善人类的热舒适性,智能可穿戴设备和建筑能效方面,JCF具有显著的潜力.
- 这项技术为传统的冷却和加热系统提供了一种节能替代方案.
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